Advertisements
Advertisements
Question
If 25 men earn Rs 1000 in 10 days, how much will 15 men earn in 15 days?
Advertisements
Solution
\[\text{ Earnings of 25 men in 10 days } = Rs . 1000\]
\[ \therefore \text{ Earnings of 25 men in 1 day }= Rs . \frac{1000}{10} = Rs . 100\]
\[ \therefore \text{ Earning of 1 man in 1 day } = Rs . \frac{100}{25} = Rs . 4\]
\[ \therefore \text{ Earnings of 1 men in 15 days } = Rs . \left( 15 \times 4 \right) = Rs . 60\]
\[ \therefore \text{ Earnings of 15 men in 15 days } = Rs . \left( 60 \times 15 \right)\]
\[ = Rs . 900\]
RELATED QUESTIONS
A photograph of a bacteria enlarged 50,000 times attains a length of 5 cm as shown in the diagram. What is the actual length of the bacteria? If the photograph is enlarged 20,000 times only, what would be its enlarged length?
Explain the concept of direct variation.
A and B can do a piece of work in 18 days; B and C in 24 days and A and C in 36 days. In what time can they do it, all working together?
A and B can do a piece of work in 20 days and B in 15 days. They work together for 2 days and then A goes away. In how many days will B finish the remaining work?
In which of the following case, do the quantities vary directly with each other?
When the speed remains constant, the distance travelled is ______ proportional to the time.
From the following table, determine if x and y are in direct proportion or not.
| x | 3 | 6 | 15 | 20 | 30 |
| y | 12 | 24 | 45 | 60 | 120 |
A volleyball court is in a rectangular shape and its dimensions are directly proportional to the dimensions of the swimming pool given below. Find the width of the pool.
A recipe for a particular type of muffins requires 1 cup of milk and 1.5 cups of chocolates. Riya has 7.5 cups of chocolates. If she is using the recipe as a guide, how many cups of milk will she need to prepare muffins?
Kusum always forgets how to convert miles to kilometres and back again. However she remembers that her car’s speedometer shows both miles and kilometres. She knows that travelling 50 miles per hour is same as travelling 80 kilometres per hour. To cover a distance of 200 km, how many miles Kusum would have to go?
